NCCCO TOWER CRANE EXAM
2023-2024 ACTUAL EXAM WITH
CORRECT( DETAILED ANSWERS )
(VERIFIED ANSWERS) GRADED A
,When tower crane is erected/dismantled, written instructions must be - ANSWER-On
site
Tower crane erection/dismantling shall be performed under direct supervision of the -
ANSWER-Designated person
What is the minimum clearance from obstruction when the tower crane freely rotates
360•? - ANSWER-6 ft 6 in
A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to - ANSWER-Block under the float or pad to achieve a 90
degree angle between the cylinder rod and the float or pad
What is the purpose of a boom length indicator? - ANSWER-Indicates the extended
length of boom
According to OSHA 1926 subpart cc, floats/pads must be fastened to the
outrigger/stabilizers when - ANSWER-They are in use
A crane's jib is offset 15 degrees versus it's original 0 degree offset and the boom angle
remains unchanged, the load radius will - ANSWER-Increase
When leaving telescopic boom cranes unattended overnight or for longer periods, the
boom should be - ANSWER-Fully retracted and stowed
On a telescopic boom truck crane that has all 5 outriggers properly positioned, the
working area diagram will indicate the "over front" area is - ANSWER-Determined by the
crane manufacturer
According to OSHA 1926 subpart cc, who determines if a crane can be used for pick
and carry operations? - ANSWER-The manufacturer
According to OSHA 1926 subpart cc, what function does the holding valve on a vertical
outrigger jack perform? - ANSWER-Hold pressure in the vertical ram if a hydraulic
connection fails
When a crane's telescopic boom sections are required to be extended equally, and the
are not, the - ANSWER-Longest section can be overloaded
, With the boom extension mounted on the boom tip, the main boom rating must be
reduced to compensate for the boom extension's - ANSWER-Effective weight
According to OSHA 1926.1433, which of the following must be on the crane?
A. A fire extinguisher
B. Anti two-block warning system
C. Battery disconnect switch
D. Vehicle identification number - ANSWER-A. A fire extinguisher
A carrier-mounted crane that is set up on outriggers should have the tires on the carrier
- ANSWER-Off the supporting surface
When a rough terrain crane is working on tires, backward tipping is most likely to occur
when the unloaded boom is position over the - ANSWER-Side at short radius
When performing pick and carry operations with a rough terrain crane, you should keep
the load - ANSWER-Positioned over the front of the carrier
In which outrigger configuration would a crane be the most susceptible to tipping from a
rapidly swinging load? - ANSWER-Outriggers up and in
According to OSHA 1926 subpart cc, when extending outriggers from the crane's upper
structure, the operator shall - ANSWER-Make visual contact or post a signal person
A luffing jib is - ANSWER-Raised or lowered independent of the main boom
When operating a rough terrain crane, what is the most stable quadrant of operation? -
ANSWER-Front
When operating a telescopic boom truck crane, what is the most stable quadrant of
operation? - ANSWER-Rear
Capacities of telescopic boom truck cranes are based on what percentage of tipping? -
ANSWER-85%
When working on rubber, a rough terrain crane's capacity is based on what percentage
of tipping? - ANSWER-75%
What is the primary concern when operating rough terrain cranes on rubber at high
boom angles? - ANSWER-Backward stability
During pick and carry operations, how is travel speed determined? - ANSWER-
Manufacturers specifications
What must the crane operator do when a load is suspended - ANSWER-Remain at the
controls
2023-2024 ACTUAL EXAM WITH
CORRECT( DETAILED ANSWERS )
(VERIFIED ANSWERS) GRADED A
,When tower crane is erected/dismantled, written instructions must be - ANSWER-On
site
Tower crane erection/dismantling shall be performed under direct supervision of the -
ANSWER-Designated person
What is the minimum clearance from obstruction when the tower crane freely rotates
360•? - ANSWER-6 ft 6 in
A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to - ANSWER-Block under the float or pad to achieve a 90
degree angle between the cylinder rod and the float or pad
What is the purpose of a boom length indicator? - ANSWER-Indicates the extended
length of boom
According to OSHA 1926 subpart cc, floats/pads must be fastened to the
outrigger/stabilizers when - ANSWER-They are in use
A crane's jib is offset 15 degrees versus it's original 0 degree offset and the boom angle
remains unchanged, the load radius will - ANSWER-Increase
When leaving telescopic boom cranes unattended overnight or for longer periods, the
boom should be - ANSWER-Fully retracted and stowed
On a telescopic boom truck crane that has all 5 outriggers properly positioned, the
working area diagram will indicate the "over front" area is - ANSWER-Determined by the
crane manufacturer
According to OSHA 1926 subpart cc, who determines if a crane can be used for pick
and carry operations? - ANSWER-The manufacturer
According to OSHA 1926 subpart cc, what function does the holding valve on a vertical
outrigger jack perform? - ANSWER-Hold pressure in the vertical ram if a hydraulic
connection fails
When a crane's telescopic boom sections are required to be extended equally, and the
are not, the - ANSWER-Longest section can be overloaded
, With the boom extension mounted on the boom tip, the main boom rating must be
reduced to compensate for the boom extension's - ANSWER-Effective weight
According to OSHA 1926.1433, which of the following must be on the crane?
A. A fire extinguisher
B. Anti two-block warning system
C. Battery disconnect switch
D. Vehicle identification number - ANSWER-A. A fire extinguisher
A carrier-mounted crane that is set up on outriggers should have the tires on the carrier
- ANSWER-Off the supporting surface
When a rough terrain crane is working on tires, backward tipping is most likely to occur
when the unloaded boom is position over the - ANSWER-Side at short radius
When performing pick and carry operations with a rough terrain crane, you should keep
the load - ANSWER-Positioned over the front of the carrier
In which outrigger configuration would a crane be the most susceptible to tipping from a
rapidly swinging load? - ANSWER-Outriggers up and in
According to OSHA 1926 subpart cc, when extending outriggers from the crane's upper
structure, the operator shall - ANSWER-Make visual contact or post a signal person
A luffing jib is - ANSWER-Raised or lowered independent of the main boom
When operating a rough terrain crane, what is the most stable quadrant of operation? -
ANSWER-Front
When operating a telescopic boom truck crane, what is the most stable quadrant of
operation? - ANSWER-Rear
Capacities of telescopic boom truck cranes are based on what percentage of tipping? -
ANSWER-85%
When working on rubber, a rough terrain crane's capacity is based on what percentage
of tipping? - ANSWER-75%
What is the primary concern when operating rough terrain cranes on rubber at high
boom angles? - ANSWER-Backward stability
During pick and carry operations, how is travel speed determined? - ANSWER-
Manufacturers specifications
What must the crane operator do when a load is suspended - ANSWER-Remain at the
controls
